Angelina Jolie is refusing to reveal when her unborn twins are due — so she and partner Brad Pitt can keep the media guessing, according to imdb.com.

The actress was reported to be due on August 19, but her labour became the subject of a media frenzy last week when false reports claimed she had already given birth.

Jolie’s legal team subsequently stepped in to set the record straight. According to the New York Times, her lawyers issued a statement saying someone posing as Jolie’s assistant was behind the false birth claims. The statement read: “A random individual has engaged in a scheme to intentionally harm my client and deceive her fans, the public and the media through an illegal and tortuous impersonation of Ms Jolie’s longtime assistant, Holly.”

Regardless, stories have also surfaced claiming that Jolie will go into labour later this month. But Jolie herself insists she’ll never give away the actual date.

She tells Vanity Fair magazine, “I don’t want to say. If I do say, people will start stressing on our due date.”